selector_extend($selector, $extendee, $extender) Returns a new version of $selector with $extendee

counters($args...) This function only exists as a workaround for IE7‘s

@warn The @warn directive prints the value of a SassScript expression to the standard error output stream. It’s useful

Variables: $ The most straightforward way to use SassScript is to use variables. Variables begin with dollar signs, and are set

keywords($args) Returns the map of named arguments passed to a function or mixin that takes a variable argument list. The

blue($color) Gets the blue component of a color. Calculated from HSL where necessary via

@extend There are often cases when designing a page when one class should have all the styles of another class, as well as its

zip($lists...) Combines several lists into a single multidimensional list. The nth value of the resulting list is a space

selector_parse($selector) Parses a user-provided selector into a list of lists of strings as returned by &

invert($color) Returns the inverse (negative) of a color. The red, green, and blue values are inverted, while the opacity